Primitive arthropods, Biology

Assignment Help:

Primitive Arthropods

The primitive arthropods, Onychophora (for example Peripatus) have a series of paired legs which are not jointed but have a ringed appearance because of the presence of rows of papillae on them. Each leg consists of two parts, a conical proximal part along with their extrinsic muscles, and a small distal part comprising a pair of claws.

183_Primitive Arthropods.png

Figure: Peripatus lateral view of head

The limbs are protracted and retracted. Using these legs, and through extension and contraction of the body for working the legs they crawl. While a segment is extended, the legs are lifted and moved forward; subsequent effective stroke provides the animals a pushing force.


Related Discussions:- Primitive arthropods

Functional regions of digestive system, Functional regions of digestive sys...

Functional regions of digestive system In general the digestive system of metazoans is divided into 4 major functional regions of: Reception Conduction and s

What is the futile cycle, What is the futile cycle The futile cycle is ...

What is the futile cycle The futile cycle is avoided because covalent modification, by  phosphorylation, has opposite effects on  the  enzymes concerned with  the  synthesis  a

Calorie requirements for ulcerative colitis, Q. Calorie requirements for ul...

Q. Calorie requirements for ulcerative colitis? Energy: The calorie requirements must be increased to: 1) Restore weight status and maintain ideal weight. 2) Compensate f

Calculate how much of the stock solution, A 15 mM solution of potassium chl...

A 15 mM solution of potassium chloride is needed for and experiment. The only liquid stock that is a available is a 1 M solution. Calculate how much of the stock solution is needed

Write briefly about the bacterial growth curve, Question 1 Write briefly a...

Question 1 Write briefly about the Bacterial growth curve Question 2 Define Virus. List out the general properties and classification of virus Question 3 What is Immunog

Explain the rapport building, Q. Explain the Rapport Building? Maintain...

Q. Explain the Rapport Building? Maintaining good relationship with the client is very important in counselling. This will help you to gain trust, confidence of the client and

Auxiliary food chains, Auxiliary Food Chains In addition to grazing an...

Auxiliary Food Chains In addition to grazing and detritus food chains there are other auxiliary food chains operated through parasites and scavengers. Some parasitic food chai

What is an accommodation, What is an accommodation? Accommodation is th...

What is an accommodation? Accommodation is the ability of the eye to focus on an object situated at variable distances from the eye. Like a camera, even the eye requires to cha

Explain directive and non-directive counseling, Directive and Non-directive...

Directive and Non-directive Counseling Directive Counseling  tends  to  be appropriate when  the  counselor  is  aware  of  the problem  and/or  is concerned about  the behavio

Metazoa, Metazoa In the two kingdom classification, the unicellular 'a...

Metazoa In the two kingdom classification, the unicellular 'animals' used to be clubbed together under a single phylum Protozoa that constituted sub-kingdom - Protozoa. The re

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd